Effect of hydrostatic pressure on air layer morphology in axisymmetric underwater vehicles
文献类型：期刊论文
| 作者 | Lu K(鲁康)1,2; Sun, Sheng2,3; Tan, Dongqi2,3; Wang SZ(王士召)1,2 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 37期号:8页码:15 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0282260 |
| 通讯作者 | Wang, Shizhao(wangsz@lnm.imech.ac.cn) |
| 英文摘要 | Air layer drag reduction is a promising drag reduction technique, whereas the ventilation process demonstrates dependence on hydrostatic pressure. In this study, using a combination of experimental and numerical simulations, a numerical model was developed for air layer drag reduction on axisymmetric underwater vehicles. A systematic investigation was conducted on air layer evolution and flow field characteristics under hydrostatic pressure ranging from 0.1 to 3 MPa. The results indicate that when the volumetric flow rate is used to characterize ventilation rate, hydrostatic pressure exerts a weak influence on the air layer shape, while a distinct linear relationship is observed between the mass flow rate and the absolute pressure at the jet nozzle. It is noteworthy that an increase in hydrostatic pressure alters air density, thereby affecting momentum exchange between the air layer and the external flow. This causes the re-entrant flow that severs the continuous gas layer to shift upstream, resulting in a reduction in the coverage area of the gas layer. This research contributes to the design of air layer drag reduction systems for axisymmetric underwater vehicles operating at varying submersion depths. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | DRAG-REDUCTION ; FLAT-PLATE ; CAVITATING FLOWS ; SPECIAL EMPHASIS ; SKIN-FRICTION ; INTERNAL FLOW |
| 资助项目 | National Natural Science Foundation of China10.13039/501100001809[11988102] ; NSFC Basic Science Center Program[12425207] ; NSFC Basic Science Center Program[12102439] ; NSFC Basic Science Center Program[92252203] ; National Natural Science Foundation of China[YSBR-087] ; Chinese Academy of Sciences Project for Young Scientists in Basic Research[XDB0620102] ; Strategic Priority Research Program of Chinese Academy of Sciences |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001554664400036 |
| 资助机构 | National Natural Science Foundation of China10.13039/501100001809 ; NSFC Basic Science Center Program ; National Natural Science Foundation of China ; Chinese Academy of Sciences Project for Young Scientists in Basic Research ; Strategic Priority Research Program of Chinese Academy of Sciences |
| 其他责任者 | 王士召 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103816]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Dalian Maritime Univ, Sch Naval Architecture & Ocean Engn, Dalian 116026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu K,Sun, Sheng,Tan, Dongqi,et al. Effect of hydrostatic pressure on air layer morphology in axisymmetric underwater vehicles[J]. PHYSICS OF FLUIDS,2025,37(8):15. |
| APA | 鲁康,Sun, Sheng,Tan, Dongqi,&王士召.(2025).Effect of hydrostatic pressure on air layer morphology in axisymmetric underwater vehicles.PHYSICS OF FLUIDS,37(8),15. |
| MLA | 鲁康,et al."Effect of hydrostatic pressure on air layer morphology in axisymmetric underwater vehicles".PHYSICS OF FLUIDS 37.8(2025):15. |
入库方式： OAI收割
来源：力学研究所
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